Systems and methods for gating medical procedures
AssigneeVarian Medical Systems, Inc.
InventorHassan Mostafavi
Life of this patent
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Abstract
A method of performing physiological gating in a medical procedure includes acquiring a sequence of images having at least a first image and a second image of a target region, determining a first composite image based on the first and second images, and gating a medical procedure based on the composite image. A method of performing a medical procedure includes providing a plurality of templates, each of the templates having an image and treatment data, acquiring an input image, registering the input image with one of the templates, and performing a medical procedure based on the treatment data of the one of the templates that is registered with the input image.
Claims53
A method of performing physiological gating in a medical procedure, wherein the method is at least partially performed using a hardware processor, comprising:
- acquiring a sequence of images, wherein each of the images in the sequence is generated using a same imaging device, the sequence of images comprises at least a first image and a second image of a target region;
- determining a first composite image based at least in part on the first and second images, wherein the determining comprises performing an image subtraction using the first and second images from the sequence;
- gating a medical procedure based at least in part on the first composite image, wherein the act of gating the medical procedure is performed in real time using the processor;
- and
- determining a first value associated with a contrast of the first composite image;
- wherein the gating the medical procedure is performed based at least on the first value;
- and wherein the gating comprises de-activating a radiation beam when the first value is above a prescribed threshold value.
A system for performing physiological gating in a medical procedure, comprising:
- means for acquiring a sequence of images, wherein each of the images in the sequence is generated using a same imaging device, the sequence of images comprises at least a first image and a second image of a target region;
- means for determining a first composite image based at least in part on the first image and the second image, wherein the means for determining is configured to perform an image subtraction using the first and second images from the sequence;
- means for gating a medical procedure in real time based at least in part on the first composite image;
- and
- means for determining a first value associated with a contrast of the first composite image;
- wherein the means for gating the medical procedure performs the gating based at least on the first value;
- and
- wherein the means for gating comprises means for deactivating a radiation beam when the first value is above a prescribed threshold value.
A computer readable non-transitory medium having a set of stored instructions, the execution of which by a processor causes at least a portion of a process to be performed, the process comprising:
- acquiring a sequence of images, wherein each of the images in the sequence is generated using a same imaging device, the sequence of images comprises at least a first image and a second image of a target region;
- determining a first composite image based at least in part on the first and second images, wherein the determining comprises performing an image subtraction using the first and second images from the sequence;
- gating a medical procedure based at least in part on the first composite image, wherein the act of gating the medical procedure is performed in real time using the processor;
- and
- determining a first value associated with a contrast of the first composite image;
- wherein the gating the medical procedure is performed based at least on the first value;
- and
- wherein the gating comprises de-activating a radiation beam when the first value is above a prescribed threshold value.
A method of performing a medical procedure, wherein the method is at least partially performed using a hardware processor, comprising:
- providing a plurality of templates for treating a patient, each of the templates having an image and treatment data, wherein the treatment data comprises one or more parameters for controlling an operation of a radiation machine, each of the plurality of templates corresponds to a phase of a physiological cycle, and the treatment data in each of the templates is pre-determined before a treatment session and forms a part of the corresponding template together with the corresponding image;
- acquiring an input image that is generated using an imaging device;
- registering the input image with one of the templates, wherein the act of registering is performed using the processor;
- and
- performing a medical procedure based at least in part on the treatment data of the one of the templates that is registered with the input image.
A system for performing a medical procedure, comprising:
- means for providing a plurality of templates for treating a patient, each of the templates having an image and treatment data, wherein the treatment data comprises one or more parameters for controlling an operation of a radiation machine, each of the plurality of templates corresponds to a phase of a physiological cycle, and the treatment data in each of the templates is pre-determined before a treatment session and forms a part of the corresponding template together with the corresponding image;
- means for acquiring an input image;
- means for registering the input image with one of the templates;
- and
- means for performing a medical procedure based at least in part on the treatment data of the one of the templates that is registered with the input image.
A computer readable non-transitory medium having a set of stored instructions, the execution of which by a processor causes at least a portion of a process to be performed, the process comprising:
- providing a plurality of templates for treating a patient, each of the templates having an image and treatment data, wherein the treatment data comprises one or more parameters for controlling an operation of a radiation machine, each of the plurality of templates corresponds to a phase of a physiological cycle, and the treatment data in each of the templates is pre-determined before a treatment session and forms a part of the corresponding template together with the corresponding image;
- acquiring an input image that is generated using an imaging device;
- registering the input image with one of the templates, wherein the act of registering is performed using the processor;
- and
- performing a medical procedure based at least in part on the treatment data of the one of the templates that is registered with the input image.
A method of performing physiological gating in a medical procedure, wherein the method is at least partially performed using a hardware processor, comprising:
- providing a template;
- acquiring an input image of a target region, wherein the input image is generated using an imaging device;
- enhancing a moving object in the input image based on a movement of the object, wherein the object comprises a part of the target region;
- registering the input image with the template, wherein the registering comprises selecting the template from a plurality of templates that best matches an image in the input image;
- determining a position of the target region based at least in part on the registering;
- and
- gating a medical procedure using the processor based at least in part on the determined position of the target region.
A system for performing physiological gating in a medical procedure, comprising:
- means for providing a template;
- means for acquiring an input image of a target region;
- means for enhancing a moving object in the input image based on a movement of the object, wherein the object comprises a part of the target region;
- means for registering the input image with the template, wherein the means for registering comprises means for selecting the template from a plurality of templates that best matches an image in the input image;
- means for determining a position of the target region based at least in part on the registering;
- and
- means for gating a medical procedure based at least in part on the determined position of the target region.
A computer readable non-transitory medium having a set of stored instructions, the execution of which by a processor causes at least a portion of a process to be performed, the process comprising:
- providing a template;
- acquiring an input image of a target region, wherein the input image is generated using an imaging device;
- enhancing a moving object in the input image based on a movement of the object, wherein the object comprises a part of the target region;
- registering the input image with the template, wherein the registering comprises selecting the template from a plurality of templates that best matches an image in the input image;
- determining a position of the target region based at least in part on the registering;
- and
- gating a medical procedure using the processor based at least in part on the determined position of the target region.
Dependencies are inferred from the claim text.